Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 86 for “"Power Line"”.
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Power line communications systems
… project is to determine the performance of a Power line communication connection by measuring its propagation characteristics. For power line communication to become efficient, a model of their behaviour at frequencies from 0 to 30 MHz is required. The attenuation and phase response are of …
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Objective determination of optimal power line designs
… thesis investigated the possibility of overhead power line designs being decided by using an objective rather than a subjective method. Power lines are required to meet criteria for load and transfer capability as specified by system planners which results in many different line design solutions. …
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Digital power line communication on EHV power lines
… coders. Simulations are performed on a 500 KV line to determine the effect of reflections and modal propagation on the equalization requirements of the modem. The major distortions are caused by the applied filtering within the modem, and the reflections on the transmission path, the later are …
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Prototype Of Coupling Unit Network For Power Line Communications
Power Line Communications has made impressive strides since its introduction. Power Line Communications (PLC) or Broadband over Power Lines (BPL) is the method of transmitting broadband signals over the power lines and making it available at the power outlet in homes. It provides last mile …
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Visual localisation of electricity pylons for power line inspection
Inspection of power infrastructure is a regular maintenance event. To date the inspection process has mostly been done manually, but there is growing interest in automating the process. The automation of the inspection process will require an accurate means for the localisation of the power …
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Optimal state estimation for a power line inspection robot
… this thesis discusses the design and off-line testing of different types of Kalman filters to estimate the attitude, position and velocity of a robotic platform moving along a power line. The nature of this problem limits the use of magnetometers. Magnetic field interference from the steel …
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Brachiating power line inspection robot: controller design and implementation
… 2014, estimates showed that the global electric power transmission network consisted of 5.5 million circuit kilometres (Ckm) of high-voltage transmission lines with a combined capacity of 17 million mega-volt ampere. The vastness of the global transmission grid presents a significant problem for …
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Power line collisions in the Karoo conserving Ludwig's bustard
Includes abstract. Includes bibliographical references.
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Power Line Communication for Low-Data-Rate Energy Control
Peaks in electricity demand shape power system operations at various scales. In large buildings, fees based on monthly demand peaks can comprise 30–70% of electricity bills. In sections of distribution grids, demand peaks can stress transformers, increasing the risk of equipment failure. …
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Simulation and study of harmonic interference in power line communications
Power line carrier (PLC) is one of the communication and load control (C&LC) techniques employed in direct load control. A PLC is, within itself, a communication system. It utilizes power transmission line as a medium of transmitting control functions, and relaying. High frequencies, in the order …
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Digital Signal Processing and Machine Learning Applied to Power Line Communications
Power Line Communications (PLC) is a technology that uses power lines to transport communication data alongside the electric power signals. Due to the ubiquitous nature of pre-existing power grid infrastructure, PLC has a huge networking potential, especially in the implementation of smart grid …
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Design, modelling and control of a brachiating power line inspection robot
The inspection of power lines and associated hardware is vital to ensuring the reliability of the transmission and distribution network. The repetitive nature of the inspection tasks present a unique opportunity for the introduction of robotic platforms, which offer the ability to perform more …
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Collective Identity in Appalachia: Place, Protest and the AEP Power Line
… Forest Service in opposition to a proposed AEP power line. This power line was to run through lands in Appalachia, such as various private properties, the Jefferson and George Washington National Forests, and across the New River. Collective identities based on place-identity, specifically …
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Power Line Communications in Microprocessors - System Level Study and Circuit Design
Power line communications (PLC) as applied to electrical power grid is known since long; however, PLC in microprocessors was recently introduced by VTVT Lab. Since power distribution network (PDN) inside a microprocessor is ubiquitous, therefore, any node inside a microprocessor can be accessed by …
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A Reliable CMOS Receiver for Power Line Communications in Integrated Circuits
Power line communications (PLC) in integrated circuits (ICs) was proposed by Dr. Dong S. Ha's group in 2005. Their goal was to utilize the power distribution network for data communications as well as delivery of power, so that the routing overhead can be avoided and the number of pins in the chip …
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Toward Trustworthy Power Line Perception from Aerial Imagery: Segmentation and Reliability Monitoring
<p>Power transmission line inspection is essential for maintaining the safety and reliability of modern infrastructure, yet traditional methods remain costly, slow, and potentially hazardous. With the increasing use of unmanned aerial vehicles (UAVs), automated vision systems have emerged as a …
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A Wide Input Power Line Energy Harvesting Circuit For Wireless Sensor Nodes
… and various designs are proposed to harvest power from ambient resources including thermal, vibrational, solar, wind, and RF sources. Among these ambient resources, AC powerlines are a stable energy source in an urban environment. Many researchers investigated methods to exploit this stable …
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An experimental investigation into the electromagnetic compatibility aspects of high frequency power line communications
Power line communications technology, long established for low data rate applications, is now charting new territory with respect to data rates and provided services. This can only be achieved by increasing PLC operating frequencies from the low frequency band (below 148.5 kHz) to the high …
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